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I need a keybinding (either a key like F12 or a mnemonic key sequence like SPC f12) in Spacemacs. When hitting the keybinding in a window containing a file in its buffer the shell script script in the directory the file is located in shall be executed.

Which one of the alternatives to define key bindings should I use? I thought about calling a function when the key binding is triggered. How could I get the directory the file in the current window buffer is located in when this function is executed? But probably there is another way to solve this problem.

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  • And what is the question? – Tobias Apr 13 '19 at 7:29
  • I added questions which relate to a possible solution I thought about. I hope this makes the overall question more clear. – thinwybk Apr 13 '19 at 9:30
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    Buffers with non-nil (buffer-file-name) have the variable default-directory set to the directory of the file. In most cases that is what (file-name-directory (buffer-file-name)) returns. Do you mean that by "root directory of the file in buffer"? Note that for a Linux user the wording "root directory of file in buffer" looks somewhat strange. AFAIK, there the root directory always is /. – Tobias Apr 13 '19 at 23:33
  • The docs - Reserved prefix command for user state that SPC o and SPC m o are guaranteed to never conflict with default bindings and which are reserved for users. Can be used instead of e.g. (global-set-key [f12] 'run-script). – thinwybk Apr 15 '19 at 14:16
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For an executable script called script the solution is to put the following code into the user-config section of the ~/.spacemacs file. The reserved prefix command for users is either SPC o or SPC m o. These bindings are guaranteed to never conflict with default key bindings. Hitting SPC o show the user specific key bindings. Hitting SPC o s executes the script.

(defun dotspacemacs/user-config ()

...

  (defun run-script ()
    (interactive)
    (shell-command "$PWD/.script"))
  (spacemacs/set-leader-keys "os" 'run-script)

...

)
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